#include <bits/stdc++.h> using namespace std; struct edge { int to; // 辺の行き先 int weight; // 辺の重み edge(int t, int w) : to(t), weight(w) { } }; using Graph = vector<vector<int>>; using dou =long double; string yes="yes"; string Yes="Yes"; string YES="YES"; string no="no"; string No="No"; string NO="NO"; template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return true; } return false; } template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return true; } return false; } #define rep(i, n) for(int i = 0; i < (int)(n); i++) #define brep(n) for(int bit=0;bit<(1<<n);bit++) #define erep(i,container) for (auto i : container) #define irep(i, n) for(int i = n-1; i >= (int)0; i--) #define rrep(i,m,n) for(ll i = m; i < (ll)(n); i++) #define reprep(i,j,h,w) rep(i,h)rep(j,w) #define all(x) (x).begin(),(x).end() #define VEC(type,name,n) std::vector<type> name(n);rep(i,n)std::cin >> name[i]; #define pb push_back #define pf push_front #define lb lower_bound #define ub upper_bound #define fi first #define se second #define itn int #define mp make_pair #define sum(a) accumulate(all(a),0ll) #define keta fixed<<setprecision #define vvector(name,typ,m,n,a)vector<vector<typ> > name(m,vector<typ> (n,a)) #define vvvector(name,t,l,m,n,a) vector<vector<vector<t> > > name(l, vector<vector<t> >(m, vector<t>(n,a))); #define vvvvector(name,t,k,l,m,n,a) vector<vector<vector<vector<t> > > > name(k,vector<vector<vector<t> > >(l, vector<vector<t> >(m, vector<t>(n,a)) )); #define case std::cout << "Case #" <<qqq+1<<": " #define res resize #define as assign #define ffor for(;;) #define ppri(a,b) std::cout << a<<" "<<b << std::endl #define pppri(a,b,c) std::cout << a<<" "<<b <<" "<< c<<std::endl #define aall(x,n) (x).begin(),(x).begin()+(n) typedef long long ll; typedef pair<int,int> P; //typedef long long T; const int INF = 2000000000; const ll INF64 = 922337203685477580ll; const ll MOD = 1000000007ll; int main(){ dou a,b; std::cin >> a>>b; a=sqrt(a); b=sqrt(b); if(a<b/2)std::cout << 0 << std::endl; else if(ll(a)==ll(b)/sqrt(2))std::cout << 4 << std::endl; else if(a<b)std::cout << 8 << std::endl; else if(a==b)std::cout << 4 << std::endl; else std::cout << 0 << std::endl; }